“Teacher for just a day, informally” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.SUB is the answer to the New York Times crossword clue “Teacher for just a day, informally”. It was last seen in the puzzle of September 23, 2025, where it runs at 5 Across and fills 3 squares. It crosses 3 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.